Or not... but I found it interesting to review:
This shows that 'mozilla' which I interpret to mean Netscape& SeaMonkey
has a clear peak in 05, but rapid decline after the introduction of
Thunderbird, and crossing each other in mid-06.
Not much different to what I would have expected. I would be vary much
interested though in possibly numbers that show SeaMonkey-branded
clients by itself, and even in the roughly last 21 months they seem to
be missing there.
support-seamonkey mailing list